1530722 has 8 divisors (see below), whose sum is σ = 2310336. Its totient is φ = 760612.

The previous prime is 1530721. The next prime is 1530779. The reversal of 1530722 is 2270351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1530694 and 1530703.

It is not an unprimeable number, because it can be changed into a prime (1530721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1958 + ... + 2625.

It is an arithmetic number, because the mean of its divisors is an integer number (288792).

2^1530722 is an apocalyptic number.

1530722 is a deficient number, since it is larger than the sum of its proper divisors (779614).

1530722 is a wasteful number, since it uses less digits than its factorization.

1530722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 1530722 is about 1237.2235044647. The cubic root of 1530722 is about 115.2476578309.

The spelling of 1530722 in words is "one million, five hundred thirty thousand, seven hundred twenty-two".